Northolt, Greater London
Extractor fan installation in Northolt
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Northolt and HA2, UB5 and UB6.
- From £210 inc VAT per fan
- Free survey

Many extractor fans in Northolt homes need replacing because they never extracted properly.
We cover Northolt and the surrounding HA2, UB5 and UB6 postcodes as part of our work across Greater London. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
Extractor fans in Northolt at a glance
- Town
- Northolt, Greater London
- Postcode districts
- HA2, UB5 and UB6
- Nearby
- Greenford (2 miles), South Ruislip (2 miles) and Sudbury (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
What the work involves
For England, Approved Document F gives minimum intermittent extract rates: 15 litres a second for a bathroom, 30 for a kitchen with a cooker hood (60 without one), 30 for a utility room and 6 for a WC. Wales, Scotland and Northern Ireland have their own rules, which we follow where the job is.
Like-for-like replacement
A new fan on the existing duct and wiring, often with an overrun timer or humidity sensor.
New fan through an outside wall
Core drilled, sleeved, wired from a fused spur and sealed outside.
Guide prices in Northolt
| Work | Guide price |
|---|---|
| New extractor fan through an outside wall (core drilled, wired, tested) (per fan) | £415–£650 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £525–£900 inc VAT |
| Inline fan for a shower room or en-suite (loft-mounted, one or two ceiling grilles) (per room) | £650–£1,075 inc VAT |
London rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- Mould on the bathroom ceiling or around the window
- The fan runs but a sheet of toilet paper does not stick to the grille
- The fan is noisy, rattling or has stopped
Rules that apply in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Northolt
What area around Northolt do you work in?
All of Greater London. Near Northolt that includes Greenford, South Ruislip, Sudbury and Harrow on the Hill.
How long does fitting a fan take?
A straight replacement takes an hour or two. A new fan with a core-drilled hole or a duct through the loft usually takes half a day.
How much does it cost to fit an extractor fan?
Replacing a fan on an existing duct usually costs £175 to £295 including VAT. A new fan through an outside wall is typically £345 to £545, and a fan ducted to outside through the loft £445 to £745.
Do you cover Northolt and nearby?
Yes. We cover Northolt and nearby places including Greenford, South Ruislip, Sudbury and Harrow on the Hill. Send your postcode and we will confirm.
What is the price of new extractor fans in Northolt?
Guide prices for Northolt use London rates: like-for-like extractor fan replacement (existing duct and wiring) is typically £210 to £355 inc VAT per fan. We confirm a fixed price in writing before any work starts.
Book a Northolt visit and we will test the fan you have before recommending a new one.
Extractor fans near Northolt
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.